Function diagram
87654321
fp_mc_393_e.vsd
Adaptation of torque constant in the case of synchronous motors
MASTERDRIVES MC
03.03.08
-393 -
V2.5
x
y
-1
+
+
1 + P090.2
140 °C - r009
100
Motor temperature
(r009)
Actual value of torque constant kT
as magnetization for torque limitation
[370.4]
Rotor temperature
adaptation
For P091.2 = 0.0 % the
estimator is switched off.
(less computing time)
If no temperature sensore is
connected, rotor temperature
adaptation is switched off.
Applies only to synchronous motors
P95=1, P95=3, P95=5 or P95=6
x
y
0
1
kT-Estimator
Motor
temperature
(r009)
Isd(act),
Isq(act)
n(act) usq(act)
If no temperature sensor is
connected, estimator accuracy is
greatly reduced.
Standstill
torque constant kT0
0.10 ... 15.00 Nm/A
P098 (1.40 Nm/A)
Max. deviation
0.0 % ... 30.0 %
P091.2 (0.0 %)
Application speed
x.x ... 100.0 %
P091.1 (20 %)
kT nominal value
[Nm/A]
r088
kT-actual value
[Nm/A]
r089
Temperature dependence
0.0 % ... 20.0 %
P090.2 (12.0 %)
Motor rated speed
P108
Motor pole
pair number
P109
Stator
resistance
P121
Main field
inductance
P120
Ratio Lq/Ld
P119
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